CN220491927U - Overhead hydrogen fuel cell tail gas condensing device - Google Patents
Overhead hydrogen fuel cell tail gas condensing device Download PDFInfo
- Publication number
- CN220491927U CN220491927U CN202321941661.5U CN202321941661U CN220491927U CN 220491927 U CN220491927 U CN 220491927U CN 202321941661 U CN202321941661 U CN 202321941661U CN 220491927 U CN220491927 U CN 220491927U
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- Prior art keywords
- fuel cell
- tail gas
- hydrogen fuel
- gas condensing
- porous structure
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- 239000007789 gas Substances 0.000 title claims abstract description 58
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 239000001257 hydrogen Substances 0.000 title claims abstract description 50
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 50
- 239000000446 fuel Substances 0.000 title claims abstract description 43
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 41
- 239000010959 steel Substances 0.000 claims abstract description 41
- 229920001971 elastomer Polymers 0.000 claims description 12
- 230000035939 shock Effects 0.000 claims description 4
- 239000007788 liquid Substances 0.000 abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 14
- 230000005494 condensation Effects 0.000 abstract description 9
- 238000009833 condensation Methods 0.000 abstract description 9
- 238000000926 separation method Methods 0.000 abstract description 6
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 238000013016 damping Methods 0.000 description 9
- 238000003487 electrochemical reaction Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Landscapes
- Fuel Cell (AREA)
Abstract
The utility model discloses a tail gas condensing device of an overhead hydrogen fuel cell, which comprises a shell, wherein an air inlet steel pipe is arranged on the shell, a porous structure is arranged on the air inlet steel pipe, a plurality of layers of honeycomb plates are arranged in the shell, a water draining outlet is arranged at the bottom of the shell, and the shell is fixed through a fixing structure; according to the utility model, the gas-liquid contact area and time are increased through the gas inlet steel pipe with the porous structure and the multi-layer honeycomb plate, so that the gas-liquid separation and condensation efficiency is greatly improved; in addition, because the tail gas of the hydrogen fuel cell contains hydrogen with incomplete reaction, the dispersed discharge of the hydrogen is realized through honeycomb holes on the honeycomb plate, the hydrogen is prevented from accumulating, and the safety of the device is improved.
Description
Technical Field
The utility model belongs to the technical field of hydrogen fuel cells, and particularly relates to an overhead hydrogen fuel cell tail gas condensing device.
Background
The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art.
Hydrogen is used as a clean energy source, and is used in the field of commercial vehicles as a trend, and a hydrogen fuel cell is used as a hydrogen conversion device, and has the characteristics of high efficiency, high power, cleanliness and the like. When the hydrogen fuel cell works, oxygen and hydrogen in the air enter the fuel cell to generate electrochemical reaction to generate water, and generated tail gas comprises water, air, water vapor and incompletely reacted hydrogen.
At present, most of the overhead hydrogen fuel cells directly introduce tail gas from top to bottom, and then directly discharge mixed water vapor to the atmosphere, so that the pipeline trend is complex and unsafe. In order to solve the problems, the Chinese patent No. 111584908A discloses an automobile hydrogen fuel cell tail gas emission device, which comprises a gas-liquid separator connected with an engine exhaust port and an exhaust pipe connected with the gas-liquid separator, wherein the exhaust pipe penetrates through a vehicle body to the top of the vehicle body, and emits tail gas to a vehicle roof. The device realizes the gas-liquid separation in the tail gas through setting up gas-liquid separator in gas vent department, because can produce steam after oxyhydrogen electrochemical reaction, the steam of production needs the complete discharge in practical application, and just can not get rid of the steam in the tail gas completely through setting up gas-liquid separator, along with the increase of fuel cell system operating duration, the tail drainage steam content of exhaust constantly increases, until reaching saturated humidity, produce the condensate, the continuous accumulation of condensate, the potential can influence the safety in utilization of whole fuel cell system electrical apparatus, the potential safety hazard of electrocutes is triggered.
Disclosure of Invention
The utility model aims to provide an overhead hydrogen fuel cell tail gas condensing device which can completely remove water vapor in tail gas generated by a hydrogen fuel cell after condensation, thereby improving the safety of the whole fuel cell system.
In order to achieve the above object, the present utility model is realized by the following technical scheme:
in a first aspect, an embodiment of the present utility model provides an overhead hydrogen fuel cell tail gas condensation device, including a housing, an air intake steel pipe is disposed on the housing, a porous structure is disposed on the air intake steel pipe, a multi-layer honeycomb plate is disposed in the housing, a drain outlet is disposed at the bottom of the housing, and the housing is fixed by a fixing structure.
As a further technical scheme, the whole cuboid structure that is of casing, the inside cavity of cuboid structure sets up, and the cuboid structure does not set up the upper surface.
As a further technical scheme, the air inlet steel pipe comprises a part with a porous structure and a part without the porous structure, wherein the part with the porous structure stretches into the shell, and the part without the porous structure is positioned outside the shell.
As a further technical solution, the end of the portion not provided with the porous structure is connected with an exhaust gas discharge pipe.
As a further technical scheme, the drain outlet at the bottom of the shell is connected with a condensed water drain pipe.
As a further technical solution, the multi-layer honeycomb panel is arranged transversely in the housing.
As a further technical scheme, the honeycomb plate is provided with 3-5 layers.
As a further technical scheme, the fixing structure comprises a right-angle steel plate, a damping rubber block and bolts.
As a further technical scheme, the right-angle steel plates comprise two right-angle steel plates which are welded at the lower positions of two sides of the shell respectively.
As a further technical scheme, each right-angle steel plate is provided with a bolt hole, the upper surface and the lower surface of each right-angle steel plate are respectively provided with a damping rubber block, and the bolts penetrate through the damping rubber blocks and the bolt holes to be fixed.
The beneficial effects of the embodiment of the utility model are as follows:
according to the overhead hydrogen fuel cell tail gas condensing device, the area and time for contact between gas and liquid and the shell are increased through the air inlet steel pipe with the porous structure and the multi-layer honeycomb plate, so that the gas-liquid separation and condensation efficiency is greatly improved; in addition, because the tail gas of the hydrogen fuel cell contains hydrogen with incomplete reaction, the dispersed discharge of the hydrogen is realized through honeycomb holes on the honeycomb plate, the hydrogen is prevented from accumulating, and the safety of the device is improved.
According to the overhead hydrogen fuel cell tail gas condensing device, the whole device is fixed through the damping rubber block, and exhaust vibration is reduced.
Compared with the prior art, the overhead hydrogen fuel cell tail gas condensing device provided by the utility model has the advantages that the structure is simple, the implementation is convenient, an additional gas-liquid separation device and a cold source are not required to be arranged in the tail gas condensing process, the pipeline arrangement is simplified, and the safety of tail gas emission is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.
FIG. 1 is a perspective view of an overhead hydrogen fuel cell tail gas condensing unit of the present utility model;
FIG. 2 is a front view of an overhead hydrogen fuel cell tail gas condensing unit of the present utility model;
FIG. 3 is a top view of the overhead hydrogen fuel cell tail gas condensing unit of the present utility model;
fig. 4 is a side view of an overhead hydrogen fuel cell tail gas condensing unit of the present utility model.
The schematic is used only as schematic;
1, a shell; 2. a honeycomb panel; 3. an air inlet steel pipe; 4. a condensed water drain pipe; 5. a right angle steel plate; 6. damping rubber blocks; 7. a bolt; 8. and a condensed tail gas exhaust hole.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the utility model. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs.
Example 1
In an exemplary embodiment of the present utility model, as shown in fig. 1 to 4, there is provided an exhaust condensing device of an overhead hydrogen fuel cell, which includes a housing 1, an air inlet steel pipe 3 is disposed on the housing 1, a porous structure is disposed on the air inlet steel pipe 3, a multi-layer honeycomb plate 2 is disposed in the housing, a drainage outlet is disposed at the bottom of the housing 1, and the housing is fixed by a fixing structure.
The shell 1 provides a condensation space for condensation of the tail exhaust gas of the hydrogen fuel cell, the whole shell is of a cuboid structure, the inside of the cuboid structure is hollow, and the cuboid structure is not provided with an upper surface. The lower part of casing sets up the steel pipe 3 that admits air, carries hydrogen fuel cell tail gas into in the casing 1 through the steel pipe that admits air and condenses, the steel pipe 3 that admits air is including the part that is equipped with porous structure and the part that is not equipped with porous structure, and wherein, the part that is equipped with porous structure stretches into inside the casing 1, and the part that is not equipped with porous structure is located the outside of casing, the tip and the tail gas exhaust pipe of the part that are not equipped with porous structure link to each other, and the tail gas that hydrogen fuel cell produced gets into the steel pipe that admits air, and part gets into in the casing from the porous structure on the pipe wall of steel pipe that admits air, and the other part gets into in the casing from the export of the steel pipe tip that admits air.
Further, the drain outlet at the bottom of the shell is connected with the condensed water drain pipe 4 and is used for timely draining condensed water generated by tail gas condensation out of the shell, and the drain outlet is arranged at the bottom of the shell to facilitate the condensed water to drain out of the shell.
As shown in fig. 3, the multi-layer honeycomb board 2 is transversely arranged in the shell, specifically, the honeycomb board is provided with 3-5 layers, and condensation of water vapor in tail gas generated by the hydrogen fuel cell is realized through the arranged multi-layer honeycomb board, so that gas-liquid separation of the tail gas is realized. The honeycomb plate adopts the existing structure, and the condensed tail gas is discharged through the condensed tail gas discharge holes 8 on the upper surface of the honeycomb plate.
In this embodiment, the housing is fixed to the roof upper part by a fixing structure including a right angle steel plate 5, a shock absorbing rubber 6 and a bolt 7.
Further, the right-angle steel plates 5 comprise two right-angle steel plates 5 which are welded below two sides of the shell respectively, two bolt holes are symmetrically formed in the right-angle steel plates at the front end, one bolt hole is formed in the right-angle steel plates at the rear end, a damping rubber block 6 is arranged above and below the right-angle steel plates respectively, and the bolts 7 penetrate through the damping rubber block and the bolt holes to be fixed. The exhaust vibration can be reduced through the damping rubber block.
The working principle of the tail gas condensing device of the overhead hydrogen fuel cell provided by the embodiment is as follows:
the exhaust gas discharged after the hydrogen fuel cell works firstly enters the shell 1 through the air inlet steel pipe 3, and after the high-temperature exhaust gas enters the air inlet steel pipe 3, the exhaust gas enters the inner cavity of the shell through two ways under the action of exhaust pressure, wherein one way is through a porous structure on the air inlet steel pipe, and the other way is through a large hole at the tail end of the air inlet steel pipe. The shell is internally divided into a plurality of cavities, each cavity is separated by a porous honeycomb plate, and tail gas entering different cavities can be cooled in multiple stages. The space between the porous honeycomb plate structure inside the shell and different porous plates is set according to different exhaust pressures, and the maximum efficiency and the maximum area of tail gas are ensured to be contacted in the cavity through different apertures, so that gas and liquid are separated and cooled. And finally, the cooled gas rises through the upper opening and is safely discharged, so that the hydrogen is prevented from accumulating at the lower part, and the liquid water is discharged through the lower water outlet. Meanwhile, a fixing structure is arranged outside the exhaust vibration reduction device, and a damping rubber block is used for reducing the exhaust vibration.
The overhead hydrogen fuel cell tail gas condensing device provided by the embodiment increases the contact area and time of gas and liquid and the shell through the arranged air inlet steel pipe with the porous structure and the multi-layer honeycomb plate, and greatly improves the gas-liquid separation and condensation efficiency.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. The utility model provides a overhead hydrogen fuel cell tail gas condensing equipment, its characterized in that, includes the casing, set up the steel pipe that admits air on the casing, set up porous structure on the steel pipe that admits air, set up the multilayer honeycomb panel in the casing, the bottom of casing sets up the drainage outlet, the casing is fixed through fixed knot constructs.
2. The overhead hydrogen fuel cell tail gas condensing unit of claim 1, wherein the housing is generally a rectangular parallelepiped structure, the interior of the rectangular parallelepiped structure is hollow, and the rectangular parallelepiped structure is not provided with an upper surface.
3. The overhead hydrogen fuel cell tail gas condensing apparatus of claim 1, wherein the inlet steel pipe comprises a portion provided with a porous structure and a portion not provided with a porous structure, wherein the portion provided with a porous structure extends into the interior of the housing and the portion not provided with a porous structure is located outside the housing.
4. The overhead hydrogen fuel cell exhaust condensing apparatus of claim 3, wherein the end of the portion not provided with the porous structure is connected to an exhaust gas discharge pipe.
5. The overhead hydrogen fuel cell tail gas condensing unit of claim 1, wherein the drain outlet at the bottom of the housing is connected to a condensate drain.
6. The overhead hydrogen fuel cell tail gas condensing unit of claim 1, wherein the multi-layered honeycomb panel is disposed laterally within the housing.
7. The overhead hydrogen fuel cell tail gas condensing unit of claim 1, wherein the honeycomb panel is provided in 3-5 layers.
8. The overhead hydrogen fuel cell tail gas condensing unit of claim 1, wherein the securing structure comprises a right angle steel plate, a shock absorbing gel block, and a bolt.
9. The overhead hydrogen fuel cell tail gas condensing unit of claim 8, wherein the right angle steel plates comprise two right angle steel plates welded at positions below both sides of the housing.
10. The overhead hydrogen fuel cell tail gas condensing unit of claim 9, wherein each right-angle steel plate is provided with a bolt hole, and a shock absorbing rubber block is arranged above and below the right-angle steel plate, and the bolts penetrate through the shock absorbing rubber blocks and the bolt holes to be fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321941661.5U CN220491927U (en) | 2023-07-21 | 2023-07-21 | Overhead hydrogen fuel cell tail gas condensing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321941661.5U CN220491927U (en) | 2023-07-21 | 2023-07-21 | Overhead hydrogen fuel cell tail gas condensing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220491927U true CN220491927U (en) | 2024-02-13 |
Family
ID=89824439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321941661.5U Active CN220491927U (en) | 2023-07-21 | 2023-07-21 | Overhead hydrogen fuel cell tail gas condensing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220491927U (en) |
-
2023
- 2023-07-21 CN CN202321941661.5U patent/CN220491927U/en active Active
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